Flashcards
Hypothesis testing: null and alternative hypotheses, errors
Flashcards do conjunto (10)
- 1A measure of dispersionGives an indication of how spread out the results within a data set are
- 2Level of significanceThe probability that a pattern in the results is due to chance.Usually p< 0.05
- 3Critical valueA value from a table for the appropriate statistical test to which an observed value is compared.Indicates if pattern is significant
- 4Observed valueThe single number calculated by a statistical test from the scores observed in the study.Compared to critical value
- 5Type 1 errorConcluded that there is a difference between variables when there isn't and accepted alternative hypothesis when it is actually due to chance
- 6Type 2 ErrorAccepting the null hypothesis when it is not due to chance and there is a correlation between variables
- 7Two- tailed alternative hypothesisThere will be a significant difference between brain volume and cleverness
- 8One-tailed alternative hypothesisThere will be a significant increase in brain volume for participants who scored higher on intelligence tests
- 9Null hypothesisThere will be no significant difference between brain volume and intelligence test scores
- 10Assumption for using a parametric test1.Data is drawn from a population that has a normal distribution
2.Variance of the two samples are not significantly different
3.level of measurement is interval
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- A level Psychology FlashCards sobre Sem título, criado por Taylor Bentley em 04-06-2018.
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- Taylor Bentley
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